When to initialize/release POOM?

Send us News! | Rules

Please Log In or Register - it's FREE!

You Are Here » WinMo @ MoDaCo » Windows Mobile » Windows Mobile Development » Windows Mobile Development - Visual C++

When to initialize/release POOM?, What method on the plug-in should I use?

Options

tedp

Feb 17 2005, 21:45

Post #1

Newbie

Group: Posters
Posts: 41
Joined: 5th February 2005
Member No.: 108,770

Device(s): Audiovox SMT5600

I'm trying to figure out where to initialize POOM so I can access the Outlook database on a phone. I'm set up with a global variable for the IPOutlookApp pointer and I was figuring to initialize it in myPlugin::Initialize() and release it in the destructor for the plug-in class. What I'm finding as I step through my code is that the IPOutlookApp is uninitialized when I try to access it in myPlugin::OnEvent or other methods.

Looks to me like what I've got there ought to work but it doesn't seem to. Should I take that as a sign that my initialization is failing or that I'm doing the wrong thing by using myPlugin::Initialize()? I'm wondering if the next step for me is to put a static class in place to initialize and release the IPOutlookApp pointer.

Any comments from the more experienced out there?

tedp

Feb 22 2005, 18:54

Post #2

Newbie

Group: Posters
Posts: 41
Joined: 5th February 2005
Member No.: 108,770

Device(s): Audiovox SMT5600

Well, it took me a while to figure this one out. Turns out that the life cycle of a plug-in looks like this:

1. home.exe loads the homescreen XML
2. home.exe fires off a seperate helper process which loads the plugin dlls and executes myPlugin::Initialize() followed by myPlugin::Save(). This allows the very CPU intensive and memory leak prone XML parsing process to be "someone else's problem" with respect to home.exe. Any plugin state that needs to be saved gets persisted in the Save() method call. The normal constructors and destructors get called as well.
3. home.exe loads the dll and calls myPlugin::Load() to retreive any plugin state saved earlier. Plugin class constructor gets called as well. Plugin message processing loop starts up...
4. Eventually the plugin gets unloaded, probably when home.exe exits upon phone shutdown. Destructors get called.

Microsoft has a nice presentation here which covers it in considerably more detail. Make sure you read the transcripts associated with the presentation too. Those are extremely helpful.

So, net-net is that I need to do any sort of POOM initialization in the constructor for the plugin class or set up a static class that does the necessary work.

« Next Oldest · Windows Mobile Development - Visual C++ · Next Newest »

Similar Topics

Topic	Replies	Topic Starter	Views	Last Action
Samsung SGH-i607 flashed with SGH-i600 ROM - Does anybody know how to flash it back?	7	hachete	5,625	Today, 16:02 Last post by: glucklichstas
Paul's complete guide to installing OSX Leopard on your MSI Wind / Advent 4211 Video uploading now...	688	Paul (MVP)	303,655	Today, 19:28 Last post by: Paul (MVP)
Pinned: How to adjust your volume levels The easy way to boost your default volume settings	107	Hendrickson	44,584	Today, 01:51 Last post by: Tulius
OMNIA WAS ORANGE, HOW TO UNLOCK HELP	18	martin1234	1,239	Today, 18:32 Last post by: mike1900
Is there a way to remove some input methods without modifying the ROM?	5	JacksonZhu	180	Today, 20:28 Last post by: ronaldb3
Need new battery, safe place to buy?	0	imzjustplayin	27	Today, 16:27 Last post by: imzjustplayin

1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)

0 Members:

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

Lo-Fi Version

Time is now: 3rd December 2008 - 20:56

MoDaCo and Mobiholics are part of the MoDaCo.network, © Paul O'Brien 2002-2008. MoDaCo is managed by Upsolv, LLC.

Our Friends - CoolSmartphone - Smartphone Thoughts - MSMobileNews - MSMobiles - DSL Developments - Brodit Specialists - PDAhut. MoDaCo uses IntelliTxt technology.